A cat purring is a distinct vibrating sound of varying duration, often in a low pitch, that is generated by vibrations in the range of 20 to 50 hertz (according to Elisabeth von Muggenthaler, a bioacoustic specialist at the Fauna Communication Institute in North Carolina). This mode is pleasant to the human ear, it does not cause anxiety and irritation. This article will help answer two main questions. “Why do cats purr?” and “How do cats purr?”

Cats have been considered magical creatures for centuries. A vivid example of such beliefs is Ancient Egypt, where all representatives of the cat family were equated with deities. If you are a cat fan, you may want to know when is cat day celebrated. Exactly 21 years ago, the International Fund for Animal Rights called on all those who are not indifferent to celebrate August 8 as International Cat Day.

In nature, big cats first appeared in regions with cold climate. Their size has been influenced by evolution. The larger the cat, the less its heat loss. Modern big cats have occurred as a result of interspecific crossbreeding.